Spyderco STOVEPIPE folding pocket knife. Inspired by custom knifemaker David Rydbom's "Bill the Butcher" design, the Stovepipe combines spectacular style with serious performance. Its sturdy, cleaver-shaped blade is crafted from 4 mm thick, high-end CPM 20CV stainless steel and has a concave cutting edge. The handle is constructed from two solid titanium plates, joined together by a backspacer, also in titanium. The two plates are then meticulously machined, and the back plate forms the basis of the knife's Reeve Integral Lock (R.I.L.) mechanism. The oversized pivot pin is machined with artistic design in mind, and also serves as a stop for the locking bar. For pocket carrying, the Stovepipe includes a machined titanium clip. The clip, backspacer and blade all feature a stonewash industrial finish. Technically: 71mm blade in high-end CPM-20CV stainless steel with stonewash finish. Length of closed knife 102mm. Length of open knife 171mm. Titanium plates, backspacer and pocket clip, stonewash finish. Knife weight 139g. Blade thickness 4mm. Delivered in a black nylon pouch with zip closure and embroidered Spyderco logo.